WPRO-AM reports that Pell was running late for an event when he dropped the keys to the Toyota Prius between the seats of the car, which was parked in front of the couple's East Side Providence home. Pell could not easily reach the keys and left the car unlocked overnight.

According to police, the next day Kwan could not find the car. The report says the couple drove around the neighborhood looking for the car before reporting it stolen early Wednesday evening.

Pell, the grandson of the late U.S. Sen. Claiborne Pell, faces Treasurer Gina Raimondo and Providence Mayor Angel Taveras in the Democratic Primary.